Westminster · Central London
Self Assessment Tax Returns in Westminster
A Self Assessment return done properly is more than data entry. For Westminster sole traders and landlords we check allowable expenses, capital allowances, pension relief and payments on account, then file the return with HMRC and send you a clear summary of what is due.
What’s included
- Full SA100 return with the supplementary pages you need (self-employment, property, dividends, capital gains)
- A review of allowable expenses and capital allowances before filing
- Calculation of payments on account and a payment timetable
- Filing online with HMRC and copies of all submissions
- HMRC correspondence handled on your behalf as your agent
- Reminders before 31 January and 31 July
Pricing: Included in the sole trader plan from £45/month. See all plans or read the full Self Assessment Tax Returns service page.
Self Assessment Tax Returns for Westminster: the basics
If you are self-employed, a company director, a landlord or you earn income that is not taxed at source, HMRC expects a Self Assessment return by 31 January each year. For people in Westminster we prepare the return from your records, claim the expenses you are entitled to, and tell you exactly what to pay and when.
Businesses in England follow UK-wide rules for Income Tax, National Insurance, VAT and Corporation Tax, with Stamp Duty Land Tax applying to property purchases. Local business rates are set and collected by the local authority.
Why Westminster businesses use IGI for self assessment tax returns
Fixed monthly fees agreed in advance
No hourly billing and no surprise invoices. Your plan covers the work agreed, and anything extra is quoted before we start.
A named accountant, not a call centre
You deal with the same person throughout the year. They learn how your Westminster business works and answer the phone when you have a question.
Deadline reminders, not deadline panic
We track your Self Assessment, VAT, Corporation Tax and Companies House dates and chase what we need well ahead of time.
Self Assessment Tax Returns questions
Answers for Westminster clients. Your accountant can go into detail for your situation.
Online returns and any balancing payment are due by 31 January following the end of the tax year on 5 April. A second payment on account, if one applies, is due by 31 July.
Not automatically. HMRC requires a return if you have untaxed income such as dividends above the allowance, rental income, or if HMRC has sent you a notice to file. We check your position and register you if a return is needed.
Keep sales invoices, receipts for business costs, bank statements and mileage logs for at least five years after the 31 January filing deadline. Our software captures receipts from your phone so the records build up through the year.
Yes. We can bring late years up to date, calculate what is owed and, where there is a reasonable excuse, draft a penalty appeal for you.
Snap receipts with the mobile app, connect your bank feed, and upload anything else through the secure client portal. Nothing needs to be posted.
Your records are held in established UK-serving cloud accounting platforms with encryption and two-factor authentication, and our communications with you are through secure channels.
Other services in Westminster
IGI Accounting is a trading name of IGI Security Services Ltd (company number 15881180). Information on this page is general guidance for UK taxpayers and is not advice for your specific circumstances; figures and thresholds are those in force at the time of writing and may change. Please speak to your accountant before acting on any of it.